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This paper describes the final development of a method and technical tool developed to support structured analysis of multiple hypotheses. The developed analysis method is an iterative process combining Morphological Analysis (MA) and Analysis of Competing Hypotheses (ACH). MA is originally developed for structuring a complex problem space, while ACH is developed for hypothesis evaluation. The combination of these, aided by the tool, facilitates problem structuring, visualization of information as well as evidence-based evaluation of hypotheses. Throughout the development of the tool, functionality and methodology have been tested through user studies involving professional analysts from various disciplines. The combination of the two methods into one integrated process supported by the tool proved successful, enabling a structured, traceable and transparent analysis from problem identification all the …